import { Injectable } from '@angular/core';
import { CordovaInstance, Plugin, CordovaCheck, IonicNativePlugin } from '@ionic-native/core';

declare const Media: any;


/**
 * @hidden
 */
export class MediaObject {

  /**
   * Open a media file
   * @param src {string} A URI containing the audio content.
   * @param onStatusUpdate {Function} A callback function to be invoked when the status of the file changes
   */
  constructor(private _objectInstance: any) {}

  /**
   * Get the current amplitude of the current recording.
   * @returns {Promise<any>} Returns a promise with the amplitude of the current recording
   */
  @CordovaInstance()
  getCurrentAmplitude(): Promise<any> { return; }

  /**
   * Get the current position within an audio file. Also updates the Media object's position parameter.
   * @returns {Promise<any>} Returns a promise with the position of the current recording
   */
  @CordovaInstance()
  getCurrentPosition(): Promise<any> { return; }

  /**
   * Get the duration of an audio file in seconds. If the duration is unknown, it returns a value of -1.
   * @returns {number} Returns a promise with the duration of the current recording
   */
  @CordovaInstance({
    sync: true
  })
  getDuration(): number { return; }

  /**
   * Starts or resumes playing an audio file.
   */
  @CordovaInstance({
    sync: true
  })
  play(iosOptions?: {
    numberOfLoops?: number,
    playAudioWhenScreenIsLocked?: boolean
  }): void { }

  /**
   * Pauses playing an audio file.
   */
  @CordovaInstance({
    sync: true
  })
  pause(): void { }

  /**
   * Releases the underlying operating system's audio resources. This is particularly important for Android, since there are a finite amount of OpenCore instances for media playback. Applications should call the release function for any Media resource that is no longer needed.
   */
  @CordovaInstance({
    sync: true
  })
  release(): void { }

  /**
   * Sets the current position within an audio file.
   * @param {number} milliseconds The time position you want to set for the current audio file
   */
  @CordovaInstance({
    sync: true
  })
  seekTo(milliseconds: number): void { }

  /**
   * Set the volume for an audio file.
   * @param volume {number} The volume to set for playback. The value must be within the range of 0.0 to 1.0.
   */
  @CordovaInstance({
    sync: true
  })
  setVolume(volume: number): void { }

  /**
   * Starts recording an audio file.
   */
  @CordovaInstance({
    sync: true
  })
  startRecord(): void { }

  /**
   * Stops recording
   */
  @CordovaInstance({
    sync: true
  })
  stopRecord(): void { }

  /**
   * Pauses recording
   */
  @CordovaInstance({
    sync: true
  })
  pauseRecord(): void { }

  /**
   * Resumes recording
   */
  @CordovaInstance({
    sync: true
  })
  resumeRecord(): void { }

  /**
   * Stops playing an audio file.
   */
  @CordovaInstance({
    sync: true
  })
  stop(): void { }

}

export type MediaStatusUpdateCallback = (statusCode: number) => void;

export interface MediaError {

  /**
   * Error message
   */
  message: string;

  /**
   * Error code
   */
  code: number;

}

export type MediaErrorCallback = (error: MediaError) => void;

/**
 * @name Media
 * @description
 * Some hints if you are using iOS and recording doesn't work:
 * 1.) Try to use a absolute file path but remove beginning "file://".
 * Then it looks like: `/var/mobile/Containers/Data/Application/AF438B8B-7724-4FBB-8E69-083463224FC4/tmp/my_file.m4a`
 * Example: `this.media.create(this.file.tempDirectory.replace(/^file:\/\//, '') + 'my_file.m4a')`
 * 2.) If that's not working, too, create the file before using.
 * Example:
 * ```typescript
 * import { MediaPlugin, MediaObject } from '@ionic-native/media';
 * import { File } from '@ionic-native/file';
 *
 * ...
 *
 * constructor(private media: MediaPlugin, private file: File) { }
 *
 * ...
 *
 * this.file.createFile(this.file.tempDirectory, 'my_file.m4a', true).then(() => {
 *   let file = this.media.create(this.file.tempDirectory.replace(/^file:\/\//, '') + 'my_file.m4a');
 *   file.startRecord();
 *   window.setTimeout(() => file.stopRecord(), 10000);
 * });
 * ```
 *
 * You can find the reasons here: https://github.com/driftyco/ionic-native/issues/1452#issuecomment-299605906
 *
 * @usage
 * ```typescript
 * import { MediaPlugin, MediaObject } from '@ionic-native/media';
 *
 *
 * constructor(private media: MediaPlugin) { }
 *
 *
 * ...
 *
 *
 * // Create a MediaPlugin instance.  Expects path to file or url as argument
 * // We can optionally pass a second argument to track the status of the media
 *
 * const onStatusUpdate = (status) => console.log(status);
 * const onSuccess = () => console.log('Action is successful.');
 * const onError = (error) => console.error(error.message);
 *
 * const file: MediaObject = this.media.create('path/to/file.mp3', onStatusUpdate, onSuccess, onError);
 *
 * // play the file
 * file.play();
 *
 * // pause the file
 * file.pause();
 *
 * // get current playback position
 * file.getCurrentPosition().then((position) => {
 *   console.log(position);
 * });
 *
 * // get file duration
 * let duration = file.getDuration();
 * console.log(duration);
 *
 * // skip to 10 seconds (expects int value in ms)
 * file.seekTo(10000);
 *
 * // stop playing the file
 * file.stop();
 *
 * // release the native audio resource
 * // Platform Quirks:
 * // iOS simply create a new instance and the old one will be overwritten
 * // Android you must call release() to destroy instances of media when you are done
 * file.release();
 *
 *
 *
 * // Recording to a file
 * const file: MediaObject = this.media.create('path/to/file.mp3');
 *
 * file.startRecord();
 *
 * file.stopRecord();
 *
 *
 * ```
 * @classes
 * MediaObject
 * @interfaces
 * MediaError
 */
@Plugin({
  pluginName: 'MediaPlugin',
  repo: 'https://github.com/apache/cordova-plugin-media',
  plugin: 'cordova-plugin-media',
  pluginRef: 'Media'
})
@Injectable()
export class MediaPlugin extends IonicNativePlugin {

  // Constants
  /**
   * @hidden
   */
  MEDIA_NONE: number = 0;
  /**
   * @hidden
   */
  MEDIA_STARTING: number = 1;
  /**
   * @hidden
   */
  MEDIA_RUNNING: number = 2;
  /**
   * @hidden
   */
  MEDIA_PAUSED: number = 3;
  /**
   * @hidden
   */
  MEDIA_STOPPED: number = 4;

  // error codes
  /**
   * @hidden
   */
  MEDIA_ERR_ABORTED: number = 1;
  /**
   * @hidden
   */
  MEDIA_ERR_NETWORK: number = 2;
  /**
   * @hidden
   */
  MEDIA_ERR_DECODE: number = 3;
  /**
   * @hidden
   */
  MEDIA_ERR_NONE_SUPPORTED: number = 4;

  /**
   * Open a media file
   * @param src {string} A URI containing the audio content.
   * @param [onStatusUpdate] {MediaStatusUpdateCallback} A callback function to be invoked when the status of the file changes
   * @param [onSuccess] {Function} A callback function to be invoked after the current play, record, or stop action is completed
   * @param [onError] {MediaErrorCallback} A callback function is be invoked if an error occurs.
   * @return {MediaObject}
   */
  @CordovaCheck()
  create(src: string,
    onStatusUpdate?: MediaStatusUpdateCallback,
    onSuccess?: Function,
    onError?: MediaErrorCallback): MediaObject {

      // Creates a new media object
      const instance = new Media(src, onSuccess, onError, onStatusUpdate);
      return new MediaObject(instance);

  }

}